In my college we have a LAN network through which we can access the Internet and DC++. This requires registration of a mac address which I have done.

Initially the network used to connect to the LAN (it showed that wired network was connected) but there was no Internet access. I restarted my machine with the network cable plugged in. This lead to an error displaying Device not configured. I fixed this by reading a question online.

Now my machine connects to the LAN with no Internet access. The network works fine on Windows.